Learned something today....
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Novice
Joined: Apr 2010
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Learned something today....
I put a 21 front and a 17 rear on my 2010 Street Glide a couple of months ago and noticed the ABS light came on. Thinking I didn't install the sensor correctly, I finally got arounnd to taking it to Harley today and was told since the wheels aren't the same size as the factory there is nothing I can do about it. The ABS has basically disabled itself. Kinda sucks, I did get the ABS option for free though. Has anyone else had this happen to them? It's just bugs me seeing that light on all the time.
Seasoned HDF Member
Joined: Jan 2006
Posts: 11,481
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From: Charleston, SC
I put a 21 front and a 17 rear on my 2010 Street Glide a couple of months ago and noticed the ABS light came on. Thinking I didn't install the sensor correctly, I finally got arounnd to taking it to Harley today and was told since the wheels aren't the same size as the factory there is nothing I can do about it. The ABS has basically disabled itself. Kinda sucks, I did get the ABS option for free though. Has anyone else had this happen to them? It's just bugs me seeing that light on all the time.
lp
Road Warrior
Joined: Jun 2009
Posts: 1,347
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From: Michigan
https://www.hdforums.com/forum/touri...-with-abs.html
ya only thing i can see a tire size mattering is if they had traction control, i know on my old z06 i had to watch tire dia when i was choosing tires, cause it would trip the traction control thinking the rears where spinning faster then fronts.
ya only thing i can see a tire size mattering is if they had traction control, i know on my old z06 i had to watch tire dia when i was choosing tires, cause it would trip the traction control thinking the rears where spinning faster then fronts.
Road Master
Joined: Jul 2006
Posts: 928
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From: Near Richmond VA.
hmm this topic came up with a buddy this morning...
Regardless, There are spacers on the front and rear axles that have 2 grooves in them. They sit inside the area where the ABS sensors are for the axles. It is very easy to put them on backwards, don't ask how I know. Refer to your manual.
Regardless, There are spacers on the front and rear axles that have 2 grooves in them. They sit inside the area where the ABS sensors are for the axles. It is very easy to put them on backwards, don't ask how I know. Refer to your manual.
Road Captain
Joined: May 2010
Posts: 636
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From: Monterey, CA
I think the ABS DVD that came with your bike makes mention of changing tire sizes, or maybe it is talked about in your Owners Manual. Those are worth checking. It talks about changing the size of the tire changes the input to the speed sensors or something like that.
Cale
Cale
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Just talked to my service guy at Harley and he said even though Harley says there is nothing you can do, Performance Mahine says there should be no problem at all with this set up.
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Extreme HDF Member
Joined: Dec 2006
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From: ST. Louis
I put a 21" on the front and 17" on the rear and I have ABS. The ABS still works no problem.......and the idiot light works properly.
Other than that, I'm no help.......sorry.
Other than that, I'm no help.......sorry.
Last edited by Texas Fat Boy; Sep 22, 2010 at 02:47 PM.
Elite HDF Member
Joined: Nov 2007
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From: Midtown Tulsa
Well, in theory, the ABS module should compare revs per mile from front to back. How else would it know if one tire was locking at what speed? There logically seems to be some correlation...